Predictors of adjuvant chemotherapy (AT) decision-making in referred patients (pts) with stage II and III colon cancer (CC)

2009 ◽  
Vol 27 (15_suppl) ◽  
pp. e15070-e15070
Author(s):  
D. S. Ksienski ◽  
M. Levesque ◽  
S. Gill
Keyword(s):  
Decision Making ◽  
Colon Cancer ◽  
High Risk ◽  
Marital Status ◽  
Univariate Analysis ◽  
Stage Ii ◽  
Stage Iii ◽  
Low Grade ◽  
Delayed Presentation ◽  
To Receive

e15070 Background: Randomized clinical trials have demonstrated a robust survival benefit of AT for node positive (stage III) CC patients; similar evidence for node-negative (stage II) patients is lacking. While guidelines recommend AT for stage III colon cancer but AT is not a routine recommendation for stage II. Actual practice of the evidence varies and suggests the interplay of additional variables. We sought to identify factors associated with practice patterns which vary from conventional AT guidelines, ie no AT in stage III CC and receipt of AT in.stage II CC. Methods: Data pertaining to pt demographics, tumor characteristics, and treatment for pts with resected stage II (n=176) and III CC (n=235) referred to the British Columbia Cancer Agency in 2004 was collected by retrospective chart review. One-sided Fisher's exact test was used to assess statistical significance (p<0.05) by univariate analysis. Results: 28% (n=49) of stage II pts received AT. Compared to untreated pts, stage II pts who received AT were significantly more often younger than 66 years (57% vs 21%), lived in a city with a regional cancer center (71% vs 51%), had T4 disease (33% vs 9%), vascular invasion (22% vs 5%), perineural invasion (10% vs 2%) and high grade (26% vs 2%). Marital status, ethnicity, lymphatic invasion and high CEA were not associated with AT in stage II. 29% (n=69) of stage III pts did not receive AT. Compared to treated pts, stage III pts who did not receive AT were significantly more often older than 65 years (91% vs 51%), had low grade disease (96% vs 84%) and presented for oncology consultation greater than 42 days from surgery (29% vs 11%). Marital status, ethnicity, residence, T4 status or N2 status were not associated with no AT in stage III. Conclusions: For pts with stage II CC, subgroups associated with high risk for relapse were more likely to receive AT although the majority of stage II pts in this cohort remained untreated. For stage III disease, almost one-third of referred pts did not receive AT. Older age and delayed presentation were strongly associated with failure to receive AT. Within the limitations of a retrospective review, these data highlight the significant and commonly observed implications of factors other than stage in AT decision-making for high risk resected CC. No significant financial relationships to disclose.

scholarly journals Review: Combination therapy in high-risk stage II or stage III colon cancer: current practice and future prospects

2010 ◽  
Vol 2 (4) ◽  
pp. 261-272 ◽  
Author(s):  
Diogo Assed Bastos ◽  
Suilane Coelho Ribeiro ◽  
Daniela de Freitas ◽  
Paulo M. Hoff
Keyword(s):  
Colon Cancer ◽  
High Risk ◽  
Combination Therapy ◽  
Current Practice ◽  
Stage Ii ◽  
Stage Iii ◽  
Future Prospects ◽  
Stage Iii Colon Cancer

scholarly journals Predictive potential of tumour-stroma ratio on benefit from adjuvant bevacizumab in high-risk stage II and stage III colon cancer

2017 ◽  
Vol 28 ◽  
pp. v168-v169
Author(s):  
S. Zunder ◽  
G. van Pelt ◽  
H. Gelderblom ◽  
R. Tollenaar ◽  
C. Mancao ◽  
...  
Keyword(s):  
Colon Cancer ◽  
High Risk ◽  
Stage Ii ◽  
Stage Iii ◽  
Tumour Stroma ◽  
Stage Iii Colon Cancer

Abstract CT263: Post-surgical liquid biopsy-guided treatment of stage III and high-risk stage II colon cancer patients: The PEGASUS trial

2020 ◽  
Author(s):  
Elena Elez ◽  
Filippo Pietrantonio ◽  
Andrea Sartore-Bianchi ◽  
Clara Montagut ◽  
Andres Cervantes ◽  
...  
Keyword(s):  
Colon Cancer ◽  
High Risk ◽  
Cancer Patients ◽  
Liquid Biopsy ◽  
Stage Ii ◽  
Stage Iii ◽  
Stage Ii Colon Cancer

The effect of gaps in chemotherapy on survival in patients with high-risk stage II and stage III colon cancer.

2012 ◽  
Vol 30 (34_suppl) ◽  
pp. 180-180
Author(s):  
Yvonne Sada ◽  
Zhigang Duan ◽  
Hashem El-Serag ◽  
Jessica Davila
Keyword(s):  
Colon Cancer ◽  
High Risk ◽  
Stage Ii ◽  
Stage Iii ◽  
Clinical Factors ◽  
Stage Iii Colon Cancer ◽  
Risk Of Mortality ◽  
Increased Risk ◽  
Multivariable Regression ◽  
The Impact

180 Background: Current guidelines recommend six months of chemotherapy (CT) for stage III colon cancer and consideration for high-risk stage II colon cancer. No previous studies have examined the impact of CT gaps on survival. This retrospective study examines determinants of CT gaps and the effect of gaps on survival. Methods: Using national Surveillance, Epidemiology, and End Results registry-Medicare linked data, high-risk stage II and stage III colon cancer patients diagnosed between 2000-2007 who received surgery and CT were identified. CT duration and gaps were calculated. CT gap was defined as 30 to 90 days between two CT claims. Data on demographics, clinical factors (comorbidity, tumor grade), and treatment factors (time to CT initiation, toxicity, hospitalization) were collected. Multivariable regression was used to examine factors associated with gaps. Cox proportional hazards analysis examined the effect of gaps on risk of mortality. Results: 7,371 patients were identified. Median age was 75 (IQR: 71-79); 47% were male. Among all patients, 1,803 (24%) had a gap. 2,674 patients (36%) received 5 to 7 months of CT, of which 469 (18%) had a gap. Multivariable regression analysis showed that patients who were black (OR 1.3, 95% CI: 1.1-1.7), stage III (1.2, 1.0-1.3), had toxicity (1.3, 1.1-1.4), or had 3 to 4 months of CT (vs. 5-7 months, 2.6, 2.3-3.0) were more likely to have a gap, while patients with a more recent diagnosis in 2007(vs. 2000, 0.6, 0.5-0.8) were less likely to have a gap. 3-year cancer-specific survival was the same in all patients with CT gaps compared with no gaps (80%, 95% CI: 78%-82% vs. 81%, 95% CI: 80%-82%). Cox proportional hazard models showed that patients with gaps did not have increased risk of mortality (HR 0.99, 0.89-1.1) adjusting for patient and clinical factors. Among those who received 5 to 7 months of CT, 3-year survival was 8% lower in patients with gaps compared to those with no gaps (80%, 95% CI: 75%-83% vs. 88%, 95% CI: 87%-90%). Conclusions: Nearly 25% of high-risk stage II and III patients who received CT had a gap. CT gaps were associated with worse survival in patients who received 5 to 7 months of CT. Interventions to improve CT toxicity management and reduce gaps are needed to maximize the benefit of CT.

Quality of care study in the surveillance of curable colon cancer.

2014 ◽  
Vol 32 (30_suppl) ◽  
pp. 237-237
Author(s):  
Aarti Sonia Bhardwaj ◽  
Randall F. Holcombe
Keyword(s):  
Colon Cancer ◽  
High Risk ◽  
Medical Oncology ◽  
Compliance Rate ◽  
Cancer Surveillance ◽  
Stage Ii ◽  
Stage Iii ◽  
Post Surgery ◽  
Care Study

237 Background: The 2005 ASCO surveillance guidelines for Stage II/III colon cancer recommended chest, abdomen (and pelvis) imaging annually for 3 years, checking a CEA every 3 months for the first 3 years and colonoscopy 1 year after surgery or preoperatively. Our primary aim was to determine Mount Sinai Hospital’s (MSH) compliance rate with ASCO surveillance guidelines, with a goal of achieving 80% compliance. We hypothesized a bias to over-imaging. A secondary aim was to determine the frequency at which high risk Stage II patients were referred to medical oncology. Methods: A retrospective study of 118 patients with newly diagnosed stage II or III colon cancer at MSH in 2011 and 2012 was undertaken. Results: Compliance rates for early surveillance measures included. 1. Checking CEA approximately every 3 months: Stage II - 84%; Stage III - 88%. 2. Colonoscopy guidelines: Stage II - 72% and Stage III - 94%. Imaging post surgery or adjuvant treatment: Stage II - 48% and Stage III - 70%. Subsequent imaging: Stage II - 44%; Stage III - 28%. (See Table.) Overall compliance with early surveillance guidelines was 55% for Stage II patients and 83% for Stage III patients. All of the non-compliance for subsequent imaging was due to overscanning. Only 62% of high risk Stage II patients were referred to medical oncology. Conclusions: Our baseline compliance to early surveillance measures for colon cancer did not consistently achieve our pre-specified benchmark. Specific areas of improvement include avoidance of overscanning during colon cancer surveillance after adjuvant chemotherapy and an improved rate of referral of high risk Stage II patients to medical oncology after surgery. [Table: see text]

FOLFOX4/XELOX in stage II–III colon cancer: Efficacy results of the Italian three or six colon adjuvant (TOSCA) trial.

2017 ◽  
Vol 35 (15_suppl) ◽  
pp. 3501-3501 ◽  
Author(s):  
Alberto F. Sobrero ◽  
Sara Lonardi ◽  
Gerardo Rosati ◽  
Maria Di Bartolomeo ◽  
Monica Ronzoni ◽  
...  
Keyword(s):  
Colon Cancer ◽  
High Risk ◽  
Health Care Systems ◽  
Standard Of Care ◽  
Stage Ii ◽  
Phase Iii ◽  
Stage Iii ◽  
Absolute Difference ◽  
Open Label ◽  
Care Systems

3501 Background: Six months of oxaliplatin-based treatment has been the standard of care as adjuvant therapy for stage III colon cancer and an accepted option for high-risk stage II. Given the cumulative neurotoxicity associated to oxaliplatin, a shorter duration of therapy, if equally efficacious, would be advantageous for patients and health-care systems. Methods: TOSCA was an open-label, phase III, multicenter, non-inferiority trial randomizing patients with high-risk stage II or stage III radically resected colon cancer to receive 3 months or 6 months of FOLFOX4/XELOX. Primary end-point was relapse-free survival. Results: From June 2007 to March 2013, 3759 patients were accrued from 130 Italian sites, 64% receiving FOLFOX4 and 36% XELOX in either arm. Two thirds were stage III. At the cut-off time for analysis the median time of follow-up was 62 months and 772 relapses or deaths have been observed. The RFS rate at 8 years is 75%. This analysis was done when 82% of the planned number of events was reached, with a power of 72% instead of 80%. The decision to anticipate the analysis was based on the participation to the IDEA joint collaborative analysis of studies sharing this clinical question. The Hazard Ratio of the 3months vs 6 months for relapse/death was 1.14 (95%CI 0.99-1.31, p for non inferiority = 0.253) and the confidence interval crossed the non inferiority limit of 1.20. Conclusions: TOSCA was not able to demonstrate that 3 months of oxaliplatin-based adjuvant treatment is as efficacious as 6 months. Nevertheless , because the absolute difference in RFS between the two treatment durations is small ( less than 3 % at 5 years ), the decision to complete the whole 6-month program should be individualized based on toxicity and patients’ attitude. This study is registered with ClinicalTrials.gov Registration Number: NCT00646607. It was supported by a grant from AIFA (Agenzia Italiana del Farmaco) Grant Code FARM5RWTWZ. Clinical trial information: NCT00646607.

Clinical impact of diverting ileostomy on the dose intensity of adjuvant chemotherapy for colorectal cancer.

2018 ◽  
Vol 36 (4_suppl) ◽  
pp. 867-867
Author(s):  
Shusuke Yagi ◽  
Eiji Shinozaki ◽  
Keisho Chin ◽  
Mitsukuni Suenaga ◽  
Daisuke Takahari ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Colon Cancer ◽  
High Risk ◽  
Adjuvant Chemotherapy ◽  
Dose Intensity ◽  
Clinical Impact ◽  
Stage Ii ◽  
Stage Iii ◽  
Diverting Ileostomy ◽  
Grade 3

867 Background: CAPOX as adjuvant chemotherapy is a standard care option for stage III and high risk stage II colorectal cancer(CRC). And then chemotherapy induced diarrhea (CID) is known as one of the dose-limiting toxicities for CAPOX. Although diverting ileostomy is useful for preventing serious complications of high risk anastomosis, it is well recognized that high ileostomy output is hard to manage. Furthermore, the effect of diverting ileostomy on CID of adjuvant chemotherapy is unclear. In this study, we addressed the clinical impact of diverting ileostomy on the dose intensity of adjuvant chemotherapy for CRC. Methods: Patients who diagnosed with stage III colon cancer and stage II or III rectal cancer after curative surgery and received CAPOX as adjuvant chemotherapy during 2011- 2014 were reviewed retrospectively. We investigated the relationship between diverting ileostomy and dose intensity, toxicities and disease-free survival (DFS). Results: 112 patients (median age 60 years, 52% male, 69% colon cancer, 63% stage III, median follow-up 47 months) were enrolled in this study. Of 112 patients, 100 patients were received chemotherapy without ileostomy (non-ileostomy group: NIG) and 12 patients were received chemotherapy with ileostomy (ileostomy group: IG). 112 Patients received 870 chemotherapy cycles. All treatment related grade 3/4 adverse events were documented in 39% of patients in NIG and 33% of patients in IG (P = 0.77). Grade 3/4 of CID occurred in 8% of patients in NIG and 8% of patients in IG (P = 1). Grade 3/4 of neutropenia were recognized in 21% of patients in NIG and 17% of patients in IG (P = 1). Average relative dose intensity (RDI) in NIG were 75.7% and 85.8% for capecitabine and oxaliplatin, respectively. Average RDI of capecitabine and oxaliplatin in IG were 76.1% and 82.7%, respectively. Significant difference of RDI of capecitabine and oxaliplatin were not shown in comparison between NIG and IG (P = 0.93, P = 0.63). The 3-year DFS rate was 85.0% in NIG and 75.0% in IG. The HR for DFS for NIG compared to IG was 1.709 (95% CI, 0.49 to 5.95; P = 0.40). Conclusions: The presence of diverting ileostomy does not affect RDI of CAPOX as adjuvant chemotherapy.

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